Which of the above structures represents the most stable conformation of 1-tert-butyl-3,5-dimethylcyclohexane?
![](data:text/plain;base64,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)
1.a
2.b
3.c
4.d
5.e
Question 2What isomer of dichlorocyclohexane is represented by the Newman projection shown below?
![](data:text/plain;base64,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)
1.1-axial; 3-axial
2.1-equatorial; 4-equatorial
3.1-equatorial; 3-equatorial
4.1-equatorial; 3-axial
5.1-equatorial; 4-axial
Question 3Which of the following statements is true concerning the isomers cis-1,2-dimethylcyclohexane and cis-1,3-dimethylcyclohexane?
1.They are not constitutional isomers.
2.They represent different conformations of the same molecule.
3.The favored conformer of the 1,3-isomer is more stable than that of the 1,2-isomer.
4.The favored conformer of the 1,3-isomer and that of the 1,2-isomer are equal in energy.
5.The relative stability of the two molecules cannot be determined.